check your CMOS battery first (better replace with a new one)
if that didn't work , plug out power cable then take out CMOS battery and reset bios (short +,- battery for 10 sec)
tnx for reply
my motherboard doesn't have onboard graphic
I changed the slot of ram a lot , it didn't work
even I took out everything (ram , gpu , CMOS battery) still I have nothing except cpu fan turning and no motherboard speaker sound :-(((
I have an old pc (mb giga , ddr2 ram , 512mb gpu )
It doesnt turn on so i changed power supply
the first power supply I test result : cpu fan and gpu fan turns on immediately after power on power supply (not clicking power button) but no display.
I changed power supply
second power supply...
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